zoomobjektiiviin

Zoomobjektiivi, known more commonly as a zoom lens, is a type of camera lens that offers a variable focal length. This means that instead of having a fixed perspective, a zoom lens allows the photographer to change the magnification and angle of view by rotating a zoom ring on the lens barrel. This ability to "zoom in" or "zoom out" without physically moving the camera makes it a versatile tool for a wide range of photographic situations.

The focal length of a zoom lens is typically expressed as a range, for example, 24-70mm. The lower number represents the widest angle of view, while the higher number represents the most telephoto (magnified) view. This range allows a single lens to perform the function of multiple prime lenses, offering convenience and flexibility. Zoom lenses can be broadly categorized into wide-angle zooms, standard zooms, telephoto zooms, and superzoom lenses, depending on the extent of their focal length range.

While zoom lenses offer significant advantages in terms of versatility and framing, they can sometimes have drawbacks compared to prime lenses (lenses with a fixed focal length). These can include a generally wider maximum aperture range, which can affect low-light performance and depth of field control, and potentially slightly lower image sharpness across the entire zoom range compared to a high-quality prime lens. However, modern zoom lens technology has greatly reduced these differences, making them a popular choice for both amateur and professional photographers.